Just bough an old late 1700's Cotswold stone home. The windows openings look like they belong on a castle. I need to replace all of these windows. but don't know how these windows fit. I have enclosed these pictures to show you how they look... any advise please I have 15 of these windows that need replaced. From the instide the windows and the openings look the same as it does from the outside other then the window ledge being wood. No trim at all just a plastered rectangle.